LIMA, Peru — A German man says the bodies of three of his college-student friends remain trapped in the wreckage of a bus five days after it crashed in Peru.

Four students from the Karlsruhe Institute of Technology were among 20 people who died when their bus plunged off a bridge into a river in the southern Andes. The Germans had come to attend the wedding of Martin Schlegel, who told The Associated Press from the crash site that the bodies of three of his friends have yet to be recovered.

He criticized the bus company’s lack of a passenger list, the five-day delay in identifying his friends and the slow response from authorities.

Last year more than 2,600 people were killed in traffic accidents in Peru.